The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
"Part of the material in chapter VII was embodied in an article printed in the Quarterly journal of economics, in May 1915, and the second half of chapter VIII is largely an adaptation of another article, 'España y el Canal de Panamá', which appeared in Hispania (London) in December 1912."--Pref